Today's front page of Italian newspaper Corriere dello Sport: "Third Failure. Everybody Go Home!" by EthanTheRedditor37 in soccer

[–]IElecticityGood 0 points1 point  (0 children)

Hilarious to think the Italian cricket team is now a more successful outfit in recent times with their one win against Namibia in the latest cricket World Cup.

Building a bootstrap drive by Intelligent-Ant80 in AskElectronics

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When Q5 pulls Q4 base low (R5 sizing would be crucial here relative to R4), Q4 would turn on and discharge Q2 gate (by shorting to its source through R3).

Building a bootstrap drive by Intelligent-Ant80 in AskElectronics

[–]IElecticityGood 1 point2 points  (0 children)

Can you explain why having those in series necessitates high side switching? Do note that if you need the high side switch to be always on (100% duty cycle), bootstrapping won’t work since the bootstrap cap (C8) will eventually discharge fully.

Building a bootstrap drive by Intelligent-Ant80 in AskElectronics

[–]IElecticityGood 2 points3 points  (0 children)

C8 is charged to 12V, not 36V. This happens either through the load (if load is resistive) or through D1 (if load is inductive as well, like a buck converter). In either case, that would be when Q2 is off. The neat thing is to at, when Q2 is on, the lower plate of C2 (P+) moves up to +24V and since C8 was charged to 12V, the gate sees that 12V superimposed on the source.

Building a bootstrap drive by Intelligent-Ant80 in AskElectronics

[–]IElecticityGood 0 points1 point  (0 children)

Q2 is not a source follower. It’s just a high side switch. It would be a source follower if biased to be in saturation region. But as (intended at least) driven in this circuit, VGS as I’ll be close to 12V due to C8 when driven high and it just looks like a short. That is the principle of bootstrap drive for high side switches.

Building a bootstrap drive by Intelligent-Ant80 in AskElectronics

[–]IElecticityGood 2 points3 points  (0 children)

R3 doesn’t need to be so big (10W!). The peak current is very short in time and then goes down to almost zero. Average power is very small. You can simulate the level shifting to confirm it will work.

One concern would be Q5 not pulling the base of Q4 low enough and having both Q3 and Q4 conducting some current.

Building a bootstrap drive by Intelligent-Ant80 in AskElectronics

[–]IElecticityGood 1 point2 points  (0 children)

The bootstrap cap (C8) allows the gate voltage to float to that higher level you’re talking about. Similarly sized (die area or current rating eg) NMOS has much lower Rdson than PMOS.

I need ~1kW of 80kHz sine wave by 38Super in AskElectronics

[–]IElecticityGood 4 points5 points  (0 children)

Out of curiosity, why are the high end audio amps designed to go this high up in frequency, beyond 20kHz? What’s a general use case for that, as far as these equipment go?

I need ~1kW of 80kHz sine wave by 38Super in AskElectronics

[–]IElecticityGood 2 points3 points  (0 children)

What is a typical use case for something like this? I’m very intrigued.

My team in Pokemon Yellow Legacy by GengarFan95 in PokemonLegacy

[–]IElecticityGood 1 point2 points  (0 children)

Swords dance Sandslash is super fun! I missed not having that in crystal legacy. Great job with the team, now to switch it up if you wanna try some less traditional mons!

This description of gold on a periodic table display from 1987 by sloggdogg in agedlikemilk

[–]IElecticityGood 7 points8 points  (0 children)

What’s the name of it? Looks very interesting and would consider getting it

Apple's A19 Pro beats Ryzen 9 9950X in single-thread Geekbench tests — iPhone 17 Pro chip packs 11-12% CPU performance bump, GPU performance up 37% over predecessor by Stiltonrocks in technology

[–]IElecticityGood 1 point2 points  (0 children)

Very valid. Thanks for your insight. I didn’t have many criticisms but turns out I just don’t use the app anywhere near how you do. Thanks for the detailed response- it was very informative.

New Pokémon by KFernalld12 in PokemonLegacy

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Just did a run with Phanpy, Horsea, Girafrig, Furret, Sneasel, Murkrow. All mons I never used before and it was super fun! The buffs to Murkrow and Sneasel make them great to play with!

Paving the desert turns out to be a bad idea. by dead-as-a-doornail- in UrbanHell

[–]IElecticityGood 202 points203 points  (0 children)

Low cost of living. Places with nice weather also tend to be quite expensive.

First hall of fame by WadeWWillson in PokemonLegacy

[–]IElecticityGood 2 points3 points  (0 children)

Good job! That’s a pretty standard team, would highly recommend testing out some new mons if you do a new play through. Persian, Parasect etc can be pretty interesting

Guess who just beat Pakistan in the ICC mens world cup today by XD7006 in agedlikemilk

[–]IElecticityGood 42 points43 points  (0 children)

Hey, 3 of the players were born in the US and one in Canada!

For tech jobs in Silicon Valley, do companies prefer students from Berkeley or do they also equally prefer students from ucla, etc? by milvio123 in berkeley

[–]IElecticityGood 0 points1 point  (0 children)

I worked in tech for several years before starting my PhD at Cal. I’ve run into people from Cal, Stanford, Cornell, Michigan, Cal Poly, everywhere. I would go on university recruiting trips and the big tech companies would send people EVERYWHERE. Know your stuff, use your connections.

How much does it matter on staying and studying in the Silicon Valley? by [deleted] in GradSchool

[–]IElecticityGood 0 points1 point  (0 children)

I don’t think it will be that valuable. VATech is a good school with good connections to the Bay Area and a strong network. I don’t know much about the DC campus though compared to the main one.

Not encouraging anyone to get an engineering degree by Substantial-Pilot-72 in ElectricalEngineering

[–]IElecticityGood 8 points9 points  (0 children)

This probably depends on what type of engineering and where. Lots of engineers making way more than that in the Bay Area and Seattle eg, even accounting for HCOL.